Describe the bug
When using the Scanner app with an Epson L3250/L3256 Series device, scans fail with an error as soon as the resolution is set to 300 DPI or higher. The app shows a red error banner stating that scanning failed due to an unknown error, with an exception message like “Exception from HRESULT: 0x800706BE”. No image is produced and the page list remains empty.
To Reproduce
- Open the “Scanner”.
- Select the device “EPSON L3250 Series” as the scanner.
- Choose “Flatbed” as the source.
- Set “Save as” to JPG (the same happens with other formats).
- Select any color mode (Color, Grayscale, or Monochrome).
- In the “Resolution” dropdown, select 300 DPI (for documents) or any higher available value.
- Click the “Scan” button.
- Observe that the scan fails and a red error message appears at the bottom: scanning failed due to an unknown error, with “Exception from HRESULT: 0x800706BE”.
Expected behavior
Scanning at 300 DPI and above should succeed without errors and produce a scanned page in the list, in the same way as at lower resolutions and as with the vendor tools for this device.
Screenshots
A screenshot from the Scanner app is attached, showing the selected “EPSON L3250 Series” device, 300 DPI resolution, and the error banner with the HRESULT 0x800706BE message.
Log data
No dedicated log files from the Scanner app are available on this system. The issue is reproducible every time with the steps above, even after reconnecting the device and restarting Windows.
Additional information / Feature request
The same physical device works correctly in WinScan2PDF when selecting the source “EPSON L3250 Series 6.7 (32-32)” or “WIA-EPSON L3250 Series 1.0 (32-32)”, including at 300 DPI and higher.
It would be very helpful if Scanner exposed an option to choose the scanner interface/driver explicitly (e.g., WIA vs vendor/TWAIN), so a working mode similar to WinScan2PDF can be selected when a specific interface causes errors.
Describe the bug
When using the Scanner app with an Epson L3250/L3256 Series device, scans fail with an error as soon as the resolution is set to 300 DPI or higher. The app shows a red error banner stating that scanning failed due to an unknown error, with an exception message like “Exception from HRESULT: 0x800706BE”. No image is produced and the page list remains empty.
To Reproduce
Expected behavior
Scanning at 300 DPI and above should succeed without errors and produce a scanned page in the list, in the same way as at lower resolutions and as with the vendor tools for this device.
Screenshots
A screenshot from the Scanner app is attached, showing the selected “EPSON L3250 Series” device, 300 DPI resolution, and the error banner with the HRESULT 0x800706BE message.
Log data
No dedicated log files from the Scanner app are available on this system. The issue is reproducible every time with the steps above, even after reconnecting the device and restarting Windows.
Additional information / Feature request
The same physical device works correctly in WinScan2PDF when selecting the source “EPSON L3250 Series 6.7 (32-32)” or “WIA-EPSON L3250 Series 1.0 (32-32)”, including at 300 DPI and higher.
It would be very helpful if Scanner exposed an option to choose the scanner interface/driver explicitly (e.g., WIA vs vendor/TWAIN), so a working mode similar to WinScan2PDF can be selected when a specific interface causes errors.